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Finding the Fourth Proportional to 139,214.52, 208,821.78 and 34,033.32

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Solution

The fourth proportional to 139,214.52, 208,821.78 and 34,033.32 is: 51,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,214.52 : 208,821.78 = 34,033.32 : x
  2. Step 2: Convert to fraction form
    139,214.52/208,821.78 = 34,033.32/x
  3. Step 3: Cross multiply
    139,214.52x = 208,821.78 × 34,033.32
  4. Step 4: Simplify right side
    139,214.52x = 7,106,898,461.71
  5. Step 5: Solve for x
    x = 7,106,898,461.71/139,214.52
  6. Step 6: Final answer
    x = 51,049.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.